Marcus Oesterberg

Marcus Oesterberg, SPE, is the chief operating officer of Ignis Energy, a geothermal development company he joined as its first employee in 2022 and where he leads development of a geothermal portfolio across the US, Türkiye, Italy, and Indonesia. He has worked in the oil and gas industry for 32 years and holds 19 US patents. He began his career at Baker Hughes in 1995, holding roles across technical services, deepwater project management, global marketing, and operations, and served as director of Gulf of Mexico drilling operations and as global product management executive for directional drilling. Before Ignis he was president of Evolution Engineering, a downhole measurement-while-drilling technology company acquired by Baker Hughes in 2021. He also serves on the board of GeoAlaska and has published with SPE, Geothermal Rising, and the Unconventional Resources Technology Conference. He holds an MSc in mechanical engineering from the Technical University of Clausthal in Germany.